15% off if you use this link.
(An explanation about the "X days left" notation on the items: Teespring is weird in that it requires campaigns of fixed length in order to sell things. I have set up the storefront so that when a campaign ends, it automatically re-launches with the shortest duration possible: 1 day. This allows you to get your merch shipped quickly rather than having to wait several days for the campaign to end.
In other words, don't worry about it: the t-shirts etc. can still be bought even if the timer "runs out".)
Also, if you intend to shop on Amazon this weekend, please consider using our referral link. It costs you nothing and helps us bring you more great content!
The Fine Print
This work is licensed under a Creative Commons Attribution- Noncommercial- No Derivative Works 3.0 License.